I have to leave water down all the time, I live in the south, yesterday it was 96 degrees. Even though they are all in my house- we take several trips a day to go out and play and do their potty business- they are in ten minutes trips about every hour to hour and half, (early mornings and late evening we stay out longer) so I understand what you are going through. But with the heat here I don't see no other solution for me. I know some other members will be able to send you in the right direction.